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Energy monitoring in reefer containers at container ports

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On the request of the customer responsible for reefers and freezers located at the container terminal in maritime port, Lumel SA has come up with a dedicated solution.

Customer's problems:

  • lack of supervision over the parameters of container power supply
  • lack of information about power supply interruptions
  • lack of possibility to provide the goods receiver with a documentation of proper and continuous power supply to the container
  • necessity to pay contractual penalties (often unjustified) due to the deterioration of the goods.


A special mobile measuring case was developed for the container which is made of materials ensuring water and dust protection as well as low weight. A complete measuring circuit consisting of the ND40 analyser, current transformers and necessary protection devices. Built-in Wi-Fi and/or GSM modules guarantee wireless communication, providing remote access to the current and archived measurement results 24/7.

Benefits after implementation of the solution:

  • full control over the parameters of the container power supply - at any time the administrator can connect to devices via Wi-Fi or GSM networks
  • immediate text message in case of any problems with the container power supply
  • recording of power supply parameters with a division into individual container numbers - it is possible, at any time, to provide the goods receiver with the power supply parameters of "their" reefer
  • elimination of contractual penalties for possible goods “perishing”